层次分析法在冀北地区多金属矿找矿预测中的应用
发布时间：2018-08-31 16:06
【摘要】：冀北地区大地构造单元包括华北陆块、天山-兴蒙造山系及中国东部造山-裂谷系,区内太古代变质岩广泛分布,海西期及燕山期岩浆侵入、喷发活动频繁,围岩蚀变发育,是寻找多金属矿产的有利区域。在分析遥感地质解译要素、蚀变遥感异常与矿化关系的基础上,以中分遥感解译的线、环及蚀变遥感异常、侵入岩、赋矿地层及矿产分布信息为判断因子,运用层次分析法建立找矿预测模型,圈出找矿靶区29个,其中3个找矿靶区内已发现5处大型-特大型矿床,6个找矿靶区内发现12处中型矿床。结果表明,在冀北地区运用层次分析法进行多金属矿找矿预测及找矿靶区圈定,具有较好的实用性。
[Abstract]:The tectonic units in northern Hebei include the North China continental block, Tianshan-Xingmeng orogenic system and eastern China orogenic rifting system. Archean metamorphic rocks are widely distributed in the area, magma intrusions in Hercynian and Yanshanian periods, frequent eruptions, and wall rock alteration. Is a favorable area for looking for polymetallic minerals. Based on the analysis of remote sensing geological interpretation elements, the relationship between alteration remote sensing anomalies and mineralization, the line, ring and alteration remote sensing anomalies, intrusive rocks, ore-bearing strata and mineral distribution information are taken as judgment factors. The prediction model of ore prospecting is established by using AHP, and 29 ore-prospecting target areas are formed. Among them, 5 large and super large ore deposits have been found in 3 prospecting target areas and 12 medium-sized deposits have been found in 6 prospecting target areas. The results show that the application of analytic hierarchy process (AHP) in prospecting prediction of polymetallic deposits and delineation of prospecting targets in the north of Hebei Province has good practicability.
【作者单位】： 河北省遥感中心;
【基金】：中国地质调查局地质调查项目“河北省矿产资源潜力评价”(编号:1212011121001)资助
【分类号】：P618.2;P627
本文编号：2215490
[Abstract]:The tectonic units in northern Hebei include the North China continental block, Tianshan-Xingmeng orogenic system and eastern China orogenic rifting system. Archean metamorphic rocks are widely distributed in the area, magma intrusions in Hercynian and Yanshanian periods, frequent eruptions, and wall rock alteration. Is a favorable area for looking for polymetallic minerals. Based on the analysis of remote sensing geological interpretation elements, the relationship between alteration remote sensing anomalies and mineralization, the line, ring and alteration remote sensing anomalies, intrusive rocks, ore-bearing strata and mineral distribution information are taken as judgment factors. The prediction model of ore prospecting is established by using AHP, and 29 ore-prospecting target areas are formed. Among them, 5 large and super large ore deposits have been found in 3 prospecting target areas and 12 medium-sized deposits have been found in 6 prospecting target areas. The results show that the application of analytic hierarchy process (AHP) in prospecting prediction of polymetallic deposits and delineation of prospecting targets in the north of Hebei Province has good practicability.
【作者单位】： 河北省遥感中心;
【基金】：中国地质调查局地质调查项目“河北省矿产资源潜力评价”(编号:1212011121001)资助
【分类号】：P618.2;P627
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